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u-boot/arch/arm/mach-exynos/soc.c

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
// SPDX-License-Identifier: GPL-2.0+
armv7: add support for S5PC210 SoC S5PC210 is a 32-bit RISC and Cortex-A9 Dual Core based micro-processor. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-01-24 06:22:23 +00:00
/*
* Copyright (c) 2010 Samsung Electronics.
* Minkyu Kang <mk7.kang@samsung.com>
*/
#include <common.h>
common: Move some cache and MMU functions out of common.h These functions belong in cpu_func.h. Another option would be cache.h but that code uses driver model and we have not moved these cache functions to use driver model. Since they are CPU-related it seems reasonable to put them here. Move them over. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-11-14 19:57:37 +00:00
#include <cpu_func.h>
common: Drop net.h from common header Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-10 17:39:56 +00:00
#include <asm/cache.h>
armv7: add support for S5PC210 SoC S5PC210 is a 32-bit RISC and Cortex-A9 Dual Core based micro-processor. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-01-24 06:22:23 +00:00
#include <asm/io.h>
EXYNOS5: Add L2 Cache Support. This patch set adds L2 Cache Support to EXYNOS. Signed-off-by: Arun Mankuzhi <arun.m@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2012-11-29 20:29:35 +00:00
#include <asm/system.h>
arm: exynos7420: remove custome low level init function Remove the custom low-level initialization function and reuse the default low-level initialization function. But this requires the ARMV8_MULTIENTRY config option to be enabled for Exynos7420. On Exynos7420, the boot CPU belongs to the second cluster and so with ARMV8_MULTIENTRY config option enabled, the 'branch_if_master' macro fails to detect the CPU as boot CPU. As a temporary workaround the CPU_RELEASE_ADDR is set to point to '_main'. Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Alison Wang <alison.wang@nxp.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-11-16 13:19:16 +00:00
#ifdef CONFIG_TARGET_ESPRESSO7420
/*
* Exynos7420 uses CPU0 of Cluster-1 as boot CPU. Due to this, branch_if_master
* fails to identify as the boot CPU as the master CPU. As temporary workaround,
* setup the slave CPU boot address as "_main".
*/
extern void _main(void);
void *secondary_boot_addr = (void *)_main;
#endif /* CONFIG_TARGET_ESPRESSO7420 */
reset: Remove addr parameter from reset_cpu() Historically, the reset_cpu() function had an `addr` parameter which was meant to pass in an address of the reset vector location, where the CPU should reset to. This feature is no longer used anywhere in U-Boot as all reset_cpu() implementations now ignore the passed value. Generic code has been added which always calls reset_cpu() with `0` which means this feature can no longer be used easily anyway. Over time, many implementations seem to have "misunderstood" the existence of this parameter as a way to customize/parameterize the reset (e.g. COLD vs WARM resets). As this is not properly supported, the code will almost always not do what it is intended to (because all call-sites just call reset_cpu() with 0). To avoid confusion and to clean up the codebase from unused left-overs of the past, remove the `addr` parameter entirely. Code which intends to support different kinds of resets should be rewritten as a sysreset driver instead. This transformation was done with the following coccinelle patch: @@ expression argvalue; @@ - reset_cpu(argvalue) + reset_cpu() @@ identifier argname; type argtype; @@ - reset_cpu(argtype argname) + reset_cpu(void) { ... } Signed-off-by: Harald Seiler <hws@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-12-15 15:47:52 +00:00
void reset_cpu(void)
armv7: add support for S5PC210 SoC S5PC210 is a 32-bit RISC and Cortex-A9 Dual Core based micro-processor. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-01-24 06:22:23 +00:00
{
arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under armv7 folder. This led to a misconception of creating separate folders for armv7m and armv7r. There is no reason to create separate folder for other armv7 based architectures when it can co-exist with few Kconfig symbols. As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and can co exist in the same folder. Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Suggested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-04-26 12:51:26 +00:00
#ifdef CONFIG_CPU_V7A
armv7: add support for S5PC210 SoC S5PC210 is a 32-bit RISC and Cortex-A9 Dual Core based micro-processor. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-01-24 06:22:23 +00:00
writel(0x1, samsung_get_base_swreset());
arm: exynos: realign the code to allow support for newer 64-bit platforms The existing Exynos 32-bit platform support needs to be realigned in order to support newer 64-bit Exynos platforms. The driver model will be utlized for drivers on the 64-bit Exynos platforms and so some of the older platform support code would not be required for the newer 64-bit Exynos platforms. Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-04-23 16:48:12 +00:00
#endif
armv7: add support for S5PC210 SoC S5PC210 is a 32-bit RISC and Cortex-A9 Dual Core based micro-processor. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-01-24 06:22:23 +00:00
}
arm:exynos: Enable data cache at exynos based processors. This patch enables the L1 data cache for systems based on Samsung Exynos processor. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2012-08-07 03:24:03 +00:00
CONFIG_SPL_SYS_[DI]CACHE_OFF: add While converting CONFIG_SYS_[DI]CACHE_OFF to Kconfig, there are instances where these configuration items are conditional on SPL. This commit adds SPL variants of these configuration items, uses CONFIG_IS_ENABLED(), and updates the configurations as required. Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Trevor Woerner <trevor@toganlabs.com> [trini: Make the default depend on the setting for full U-Boot, update more zynq hardware] Signed-off-by: Tom Rini <trini@konsulko.com>
2019-05-03 13:41:00 +00:00
#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
arm:exynos: Enable data cache at exynos based processors. This patch enables the L1 data cache for systems based on Samsung Exynos processor. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2012-08-07 03:24:03 +00:00
void enable_caches(void)
{
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
}
#endif
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